Am 04.01.2014 11:55, schrieb Mauro Carvalho Chehab:
> Now that we want to split the video handling to a separate
> module, move all video-specific functions to em28xx-video.
>
> No functional changes.
>
> Signed-off-by: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
> ---
> drivers/media/usb/em28xx/em28xx-cards.c | 107 ---------
> drivers/media/usb/em28xx/em28xx-core.c | 259 ----------------------
> drivers/media/usb/em28xx/em28xx-video.c | 374 +++++++++++++++++++++++++++++++-
> drivers/media/usb/em28xx/em28xx.h | 1 +
> 4 files changed, 371 insertions(+), 370 deletions(-)
>
> diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
> index 36853f16bf97..19827e79cf53 100644
> --- a/drivers/media/usb/em28xx/em28xx-cards.c
> +++ b/drivers/media/usb/em28xx/em28xx-cards.c
> @@ -2529,113 +2529,6 @@ static void em28xx_pre_card_setup(struct em28xx *dev)
> em28xx_set_mode(dev, EM28XX_SUSPEND);
> }
>
> -static void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl)
> -{
> - memset(ctl, 0, sizeof(*ctl));
> -
> - ctl->fname = XC2028_DEFAULT_FIRMWARE;
> - ctl->max_len = 64;
> - ctl->mts = em28xx_boards[dev->model].mts_firmware;
> -
> - switch (dev->model) {
> - case EM2880_BOARD_EMPIRE_DUAL_TV:
> - case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
> - case EM2882_BOARD_TERRATEC_HYBRID_XS:
> - ctl->demod = XC3028_FE_ZARLINK456;
> - break;
> - case EM2880_BOARD_TERRATEC_HYBRID_XS:
> - case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
> - case EM2881_BOARD_PINNACLE_HYBRID_PRO:
> - ctl->demod = XC3028_FE_ZARLINK456;
> - break;
> - case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
> - case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
> - ctl->demod = XC3028_FE_DEFAULT;
> - break;
> - case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
> - ctl->demod = XC3028_FE_DEFAULT;
> - ctl->fname = XC3028L_DEFAULT_FIRMWARE;
> - break;
> - case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
> - case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
> - case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
> - /* FIXME: Better to specify the needed IF */
> - ctl->demod = XC3028_FE_DEFAULT;
> - break;
> - case EM2883_BOARD_KWORLD_HYBRID_330U:
> - case EM2882_BOARD_DIKOM_DK300:
> - case EM2882_BOARD_KWORLD_VS_DVBT:
> - ctl->demod = XC3028_FE_CHINA;
> - ctl->fname = XC2028_DEFAULT_FIRMWARE;
> - break;
> - case EM2882_BOARD_EVGA_INDTUBE:
> - ctl->demod = XC3028_FE_CHINA;
> - ctl->fname = XC3028L_DEFAULT_FIRMWARE;
> - break;
> - default:
> - ctl->demod = XC3028_FE_OREN538;
> - }
> -}
> -
> -static void em28xx_tuner_setup(struct em28xx *dev)
> -{
> - struct tuner_setup tun_setup;
> - struct v4l2_frequency f;
> -
> - if (dev->tuner_type == TUNER_ABSENT)
> - return;
> -
> - memset(&tun_setup, 0, sizeof(tun_setup));
> -
> - tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
> - tun_setup.tuner_callback = em28xx_tuner_callback;
> -
> - if (dev->board.radio.type) {
> - tun_setup.type = dev->board.radio.type;
> - tun_setup.addr = dev->board.radio_addr;
> -
> - v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup);
> - }
> -
> - if ((dev->tuner_type != TUNER_ABSENT) && (dev->tuner_type)) {
> - tun_setup.type = dev->tuner_type;
> - tun_setup.addr = dev->tuner_addr;
> -
> - v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup);
> - }
> -
> - if (dev->tda9887_conf) {
> - struct v4l2_priv_tun_config tda9887_cfg;
> -
> - tda9887_cfg.tuner = TUNER_TDA9887;
> - tda9887_cfg.priv = &dev->tda9887_conf;
> -
> - v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &tda9887_cfg);
> - }
> -
> - if (dev->tuner_type == TUNER_XC2028) {
> - struct v4l2_priv_tun_config xc2028_cfg;
> - struct xc2028_ctrl ctl;
> -
> - memset(&xc2028_cfg, 0, sizeof(xc2028_cfg));
> - memset(&ctl, 0, sizeof(ctl));
> -
> - em28xx_setup_xc3028(dev, &ctl);
> -
> - xc2028_cfg.tuner = TUNER_XC2028;
> - xc2028_cfg.priv = &ctl;
> -
> - v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &xc2028_cfg);
> - }
> -
> - /* configure tuner */
> - f.tuner = 0;
> - f.type = V4L2_TUNER_ANALOG_TV;
> - f.frequency = 9076; /* just a magic number */
> - dev->ctl_freq = f.frequency;
> - v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
> -}
> -
> static int em28xx_hint_board(struct em28xx *dev)
> {
> int i;
> diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c
> index f6076a512e8f..3012912d2997 100644
> --- a/drivers/media/usb/em28xx/em28xx-core.c
> +++ b/drivers/media/usb/em28xx/em28xx-core.c
> @@ -53,14 +53,6 @@ MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
> printk(KERN_INFO "%s %s :"fmt, \
> dev->name, __func__ , ##arg); } while (0)
>
> -static int alt;
> -module_param(alt, int, 0644);
> -MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
> -
> -static unsigned int disable_vbi;
> -module_param(disable_vbi, int, 0644);
> -MODULE_PARM_DESC(disable_vbi, "disable vbi support");
> -
> /* FIXME */
> #define em28xx_isocdbg(fmt, arg...) do {\
> if (core_debug) \
> @@ -603,24 +595,6 @@ init_audio:
> }
> EXPORT_SYMBOL_GPL(em28xx_audio_setup);
>
> -int em28xx_colorlevels_set_default(struct em28xx *dev)
> -{
> - em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT);
> - em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT);
> - em28xx_write_reg(dev, EM28XX_R22_UVGAIN, SATURATION_DEFAULT);
> - em28xx_write_reg(dev, EM28XX_R23_UOFFSET, BLUE_BALANCE_DEFAULT);
> - em28xx_write_reg(dev, EM28XX_R24_VOFFSET, RED_BALANCE_DEFAULT);
> - em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, SHARPNESS_DEFAULT);
> -
> - em28xx_write_reg(dev, EM28XX_R14_GAMMA, 0x20);
> - em28xx_write_reg(dev, EM28XX_R15_RGAIN, 0x20);
> - em28xx_write_reg(dev, EM28XX_R16_GGAIN, 0x20);
> - em28xx_write_reg(dev, EM28XX_R17_BGAIN, 0x20);
> - em28xx_write_reg(dev, EM28XX_R18_ROFFSET, 0x00);
> - em28xx_write_reg(dev, EM28XX_R19_GOFFSET, 0x00);
> - return em28xx_write_reg(dev, EM28XX_R1A_BOFFSET, 0x00);
> -}
> -
> const struct em28xx_led *em28xx_find_led(struct em28xx *dev,
> enum em28xx_led_role role)
> {
> @@ -696,227 +670,6 @@ int em28xx_capture_start(struct em28xx *dev, int start)
> return rc;
> }
>
> -int em28xx_vbi_supported(struct em28xx *dev)
> -{
> - /* Modprobe option to manually disable */
> - if (disable_vbi == 1)
> - return 0;
> -
> - if (dev->board.is_webcam)
> - return 0;
> -
> - /* FIXME: check subdevices for VBI support */
> -
> - if (dev->chip_id == CHIP_ID_EM2860 ||
> - dev->chip_id == CHIP_ID_EM2883)
> - return 1;
> -
> - /* Version of em28xx that does not support VBI */
> - return 0;
> -}
> -
> -int em28xx_set_outfmt(struct em28xx *dev)
> -{
> - int ret;
> - u8 fmt, vinctrl;
> -
> - fmt = dev->format->reg;
> - if (!dev->is_em25xx)
> - fmt |= 0x20;
> - /*
> - * NOTE: it's not clear if this is really needed !
> - * The datasheets say bit 5 is a reserved bit and devices seem to work
> - * fine without it. But the Windows driver sets it for em2710/50+em28xx
> - * devices and we've always been setting it, too.
> - *
> - * em2765 (em25xx, em276x/7x/8x) devices do NOT work with this bit set,
> - * it's likely used for an additional (compressed ?) format there.
> - */
> - ret = em28xx_write_reg(dev, EM28XX_R27_OUTFMT, fmt);
> - if (ret < 0)
> - return ret;
> -
> - ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, dev->vinmode);
> - if (ret < 0)
> - return ret;
> -
> - vinctrl = dev->vinctl;
> - if (em28xx_vbi_supported(dev) == 1) {
> - vinctrl |= EM28XX_VINCTRL_VBI_RAW;
> - em28xx_write_reg(dev, EM28XX_R34_VBI_START_H, 0x00);
> - em28xx_write_reg(dev, EM28XX_R36_VBI_WIDTH, dev->vbi_width/4);
> - em28xx_write_reg(dev, EM28XX_R37_VBI_HEIGHT, dev->vbi_height);
> - if (dev->norm & V4L2_STD_525_60) {
> - /* NTSC */
> - em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x09);
> - } else if (dev->norm & V4L2_STD_625_50) {
> - /* PAL */
> - em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x07);
> - }
> - }
> -
> - return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, vinctrl);
> -}
> -
> -static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax,
> - u8 ymin, u8 ymax)
> -{
> - em28xx_coredbg("em28xx Scale: (%d,%d)-(%d,%d)\n",
> - xmin, ymin, xmax, ymax);
> -
> - em28xx_write_regs(dev, EM28XX_R28_XMIN, &xmin, 1);
> - em28xx_write_regs(dev, EM28XX_R29_XMAX, &xmax, 1);
> - em28xx_write_regs(dev, EM28XX_R2A_YMIN, &ymin, 1);
> - return em28xx_write_regs(dev, EM28XX_R2B_YMAX, &ymax, 1);
> -}
> -
> -static void em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart,
> - u16 width, u16 height)
> -{
> - u8 cwidth = width >> 2;
> - u8 cheight = height >> 2;
> - u8 overflow = (height >> 9 & 0x02) | (width >> 10 & 0x01);
> - /* NOTE: size limit: 2047x1023 = 2MPix */
> -
> - em28xx_coredbg("capture area set to (%d,%d): %dx%d\n",
> - hstart, vstart,
> - ((overflow & 2) << 9 | cwidth << 2),
> - ((overflow & 1) << 10 | cheight << 2));
> -
> - em28xx_write_regs(dev, EM28XX_R1C_HSTART, &hstart, 1);
> - em28xx_write_regs(dev, EM28XX_R1D_VSTART, &vstart, 1);
> - em28xx_write_regs(dev, EM28XX_R1E_CWIDTH, &cwidth, 1);
> - em28xx_write_regs(dev, EM28XX_R1F_CHEIGHT, &cheight, 1);
> - em28xx_write_regs(dev, EM28XX_R1B_OFLOW, &overflow, 1);
> -
> - /* FIXME: function/meaning of these registers ? */
> - /* FIXME: align width+height to multiples of 4 ?! */
> - if (dev->is_em25xx) {
> - em28xx_write_reg(dev, 0x34, width >> 4);
> - em28xx_write_reg(dev, 0x35, height >> 4);
> - }
> -}
> -
> -static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v)
> -{
> - u8 mode;
> - /* the em2800 scaler only supports scaling down to 50% */
> -
> - if (dev->board.is_em2800) {
> - mode = (v ? 0x20 : 0x00) | (h ? 0x10 : 0x00);
> - } else {
> - u8 buf[2];
> -
> - buf[0] = h;
> - buf[1] = h >> 8;
> - em28xx_write_regs(dev, EM28XX_R30_HSCALELOW, (char *)buf, 2);
> -
> - buf[0] = v;
> - buf[1] = v >> 8;
> - em28xx_write_regs(dev, EM28XX_R32_VSCALELOW, (char *)buf, 2);
> - /* it seems that both H and V scalers must be active
> - to work correctly */
> - mode = (h || v) ? 0x30 : 0x00;
> - }
> - return em28xx_write_reg_bits(dev, EM28XX_R26_COMPR, mode, 0x30);
> -}
> -
> -/* FIXME: this only function read values from dev */
> -int em28xx_resolution_set(struct em28xx *dev)
> -{
> - int width, height;
> - width = norm_maxw(dev);
> - height = norm_maxh(dev);
> -
> - /* Properly setup VBI */
> - dev->vbi_width = 720;
> - if (dev->norm & V4L2_STD_525_60)
> - dev->vbi_height = 12;
> - else
> - dev->vbi_height = 18;
> -
> - em28xx_set_outfmt(dev);
> -
> - em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2);
> -
> - /* If we don't set the start position to 2 in VBI mode, we end up
> - with line 20/21 being YUYV encoded instead of being in 8-bit
> - greyscale. The core of the issue is that line 21 (and line 23 for
> - PAL WSS) are inside of active video region, and as a result they
> - get the pixelformatting associated with that area. So by cropping
> - it out, we end up with the same format as the rest of the VBI
> - region */
> - if (em28xx_vbi_supported(dev) == 1)
> - em28xx_capture_area_set(dev, 0, 2, width, height);
> - else
> - em28xx_capture_area_set(dev, 0, 0, width, height);
> -
> - return em28xx_scaler_set(dev, dev->hscale, dev->vscale);
> -}
> -
> -/* Set USB alternate setting for analog video */
> -int em28xx_set_alternate(struct em28xx *dev)
> -{
> - int errCode;
> - int i;
> - unsigned int min_pkt_size = dev->width * 2 + 4;
> -
> - /* NOTE: for isoc transfers, only alt settings > 0 are allowed
> - bulk transfers seem to work only with alt=0 ! */
> - dev->alt = 0;
> - if ((alt > 0) && (alt < dev->num_alt)) {
> - em28xx_coredbg("alternate forced to %d\n", dev->alt);
> - dev->alt = alt;
> - goto set_alt;
> - }
> - if (dev->analog_xfer_bulk)
> - goto set_alt;
> -
> - /* When image size is bigger than a certain value,
> - the frame size should be increased, otherwise, only
> - green screen will be received.
> - */
> - if (dev->width * 2 * dev->height > 720 * 240 * 2)
> - min_pkt_size *= 2;
> -
> - for (i = 0; i < dev->num_alt; i++) {
> - /* stop when the selected alt setting offers enough bandwidth */
> - if (dev->alt_max_pkt_size_isoc[i] >= min_pkt_size) {
> - dev->alt = i;
> - break;
> - /* otherwise make sure that we end up with the maximum bandwidth
> - because the min_pkt_size equation might be wrong...
> - */
> - } else if (dev->alt_max_pkt_size_isoc[i] >
> - dev->alt_max_pkt_size_isoc[dev->alt])
> - dev->alt = i;
> - }
> -
> -set_alt:
> - /* NOTE: for bulk transfers, we need to call usb_set_interface()
> - * even if the previous settings were the same. Otherwise streaming
> - * fails with all urbs having status = -EOVERFLOW ! */
> - if (dev->analog_xfer_bulk) {
> - dev->max_pkt_size = 512; /* USB 2.0 spec */
> - dev->packet_multiplier = EM28XX_BULK_PACKET_MULTIPLIER;
> - } else { /* isoc */
> - em28xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
> - min_pkt_size, dev->alt);
> - dev->max_pkt_size =
> - dev->alt_max_pkt_size_isoc[dev->alt];
> - dev->packet_multiplier = EM28XX_NUM_ISOC_PACKETS;
> - }
> - em28xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
> - dev->alt, dev->max_pkt_size);
> - errCode = usb_set_interface(dev->udev, 0, dev->alt);
> - if (errCode < 0) {
> - em28xx_errdev("cannot change alternate number to %d (error=%i)\n",
> - dev->alt, errCode);
> - return errCode;
> - }
> - return 0;
> -}
> -
> int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio)
> {
> int rc = 0;
> @@ -1282,18 +1035,6 @@ int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
> EXPORT_SYMBOL_GPL(em28xx_init_usb_xfer);
>
> /*
> - * em28xx_wake_i2c()
> - * configure i2c attached devices
> - */
> -void em28xx_wake_i2c(struct em28xx *dev)
> -{
> - v4l2_device_call_all(&dev->v4l2_dev, 0, core, reset, 0);
> - v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
> - INPUT(dev->ctl_input)->vmux, 0, 0);
> - v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
> -}
> -
> -/*
> * Device control list
> */
>
> diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
> index dd19c9ff76e0..70ffe259df5b 100644
> --- a/drivers/media/usb/em28xx/em28xx-video.c
> +++ b/drivers/media/usb/em28xx/em28xx-video.c
> @@ -53,15 +53,23 @@
>
> #define EM28XX_VERSION "0.2.0"
>
> +static unsigned int isoc_debug;
> +module_param(isoc_debug, int, 0644);
> +MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
> +
> +static unsigned int disable_vbi;
> +module_param(disable_vbi, int, 0644);
> +MODULE_PARM_DESC(disable_vbi, "disable vbi support");
> +
> +static int alt;
> +module_param(alt, int, 0644);
> +MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
> +
> #define em28xx_videodbg(fmt, arg...) do {\
> if (video_debug) \
> printk(KERN_INFO "%s %s :"fmt, \
> dev->name, __func__ , ##arg); } while (0)
>
> -static unsigned int isoc_debug;
> -module_param(isoc_debug, int, 0644);
> -MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
> -
> #define em28xx_isocdbg(fmt, arg...) \
> do {\
> if (isoc_debug) { \
> @@ -135,6 +143,257 @@ static struct em28xx_fmt format[] = {
> },
> };
>
> +/*
> + * em28xx_wake_i2c()
> + * configure i2c attached devices
> + */
> +void em28xx_wake_i2c(struct em28xx *dev)
> +{
> + v4l2_device_call_all(&dev->v4l2_dev, 0, core, reset, 0);
> + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
> + INPUT(dev->ctl_input)->vmux, 0, 0);
> + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
> +}
> +
> +int em28xx_colorlevels_set_default(struct em28xx *dev)
> +{
> + em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT);
> + em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT);
> + em28xx_write_reg(dev, EM28XX_R22_UVGAIN, SATURATION_DEFAULT);
> + em28xx_write_reg(dev, EM28XX_R23_UOFFSET, BLUE_BALANCE_DEFAULT);
> + em28xx_write_reg(dev, EM28XX_R24_VOFFSET, RED_BALANCE_DEFAULT);
> + em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, SHARPNESS_DEFAULT);
> +
> + em28xx_write_reg(dev, EM28XX_R14_GAMMA, 0x20);
> + em28xx_write_reg(dev, EM28XX_R15_RGAIN, 0x20);
> + em28xx_write_reg(dev, EM28XX_R16_GGAIN, 0x20);
> + em28xx_write_reg(dev, EM28XX_R17_BGAIN, 0x20);
> + em28xx_write_reg(dev, EM28XX_R18_ROFFSET, 0x00);
> + em28xx_write_reg(dev, EM28XX_R19_GOFFSET, 0x00);
> + return em28xx_write_reg(dev, EM28XX_R1A_BOFFSET, 0x00);
> +}
> +
> +int em28xx_set_outfmt(struct em28xx *dev)
> +{
> + int ret;
> + u8 fmt, vinctrl;
> +
> + fmt = dev->format->reg;
> + if (!dev->is_em25xx)
> + fmt |= 0x20;
> + /*
> + * NOTE: it's not clear if this is really needed !
> + * The datasheets say bit 5 is a reserved bit and devices seem to work
> + * fine without it. But the Windows driver sets it for em2710/50+em28xx
> + * devices and we've always been setting it, too.
> + *
> + * em2765 (em25xx, em276x/7x/8x) devices do NOT work with this bit set,
> + * it's likely used for an additional (compressed ?) format there.
> + */
> + ret = em28xx_write_reg(dev, EM28XX_R27_OUTFMT, fmt);
> + if (ret < 0)
> + return ret;
> +
> + ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, dev->vinmode);
> + if (ret < 0)
> + return ret;
> +
> + vinctrl = dev->vinctl;
> + if (em28xx_vbi_supported(dev) == 1) {
> + vinctrl |= EM28XX_VINCTRL_VBI_RAW;
> + em28xx_write_reg(dev, EM28XX_R34_VBI_START_H, 0x00);
> + em28xx_write_reg(dev, EM28XX_R36_VBI_WIDTH, dev->vbi_width/4);
> + em28xx_write_reg(dev, EM28XX_R37_VBI_HEIGHT, dev->vbi_height);
> + if (dev->norm & V4L2_STD_525_60) {
> + /* NTSC */
> + em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x09);
> + } else if (dev->norm & V4L2_STD_625_50) {
> + /* PAL */
> + em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x07);
> + }
> + }
> +
> + return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, vinctrl);
> +}
> +
> +static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax,
> + u8 ymin, u8 ymax)
> +{
> + em28xx_videodbg("em28xx Scale: (%d,%d)-(%d,%d)\n",
> + xmin, ymin, xmax, ymax);
> +
> + em28xx_write_regs(dev, EM28XX_R28_XMIN, &xmin, 1);
> + em28xx_write_regs(dev, EM28XX_R29_XMAX, &xmax, 1);
> + em28xx_write_regs(dev, EM28XX_R2A_YMIN, &ymin, 1);
> + return em28xx_write_regs(dev, EM28XX_R2B_YMAX, &ymax, 1);
> +}
> +
> +static void em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart,
> + u16 width, u16 height)
> +{
> + u8 cwidth = width >> 2;
> + u8 cheight = height >> 2;
> + u8 overflow = (height >> 9 & 0x02) | (width >> 10 & 0x01);
> + /* NOTE: size limit: 2047x1023 = 2MPix */
> +
> + em28xx_videodbg("capture area set to (%d,%d): %dx%d\n",
> + hstart, vstart,
> + ((overflow & 2) << 9 | cwidth << 2),
> + ((overflow & 1) << 10 | cheight << 2));
> +
> + em28xx_write_regs(dev, EM28XX_R1C_HSTART, &hstart, 1);
> + em28xx_write_regs(dev, EM28XX_R1D_VSTART, &vstart, 1);
> + em28xx_write_regs(dev, EM28XX_R1E_CWIDTH, &cwidth, 1);
> + em28xx_write_regs(dev, EM28XX_R1F_CHEIGHT, &cheight, 1);
> + em28xx_write_regs(dev, EM28XX_R1B_OFLOW, &overflow, 1);
> +
> + /* FIXME: function/meaning of these registers ? */
> + /* FIXME: align width+height to multiples of 4 ?! */
> + if (dev->is_em25xx) {
> + em28xx_write_reg(dev, 0x34, width >> 4);
> + em28xx_write_reg(dev, 0x35, height >> 4);
> + }
> +}
> +
> +static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v)
> +{
> + u8 mode;
> + /* the em2800 scaler only supports scaling down to 50% */
> +
> + if (dev->board.is_em2800) {
> + mode = (v ? 0x20 : 0x00) | (h ? 0x10 : 0x00);
> + } else {
> + u8 buf[2];
> +
> + buf[0] = h;
> + buf[1] = h >> 8;
> + em28xx_write_regs(dev, EM28XX_R30_HSCALELOW, (char *)buf, 2);
> +
> + buf[0] = v;
> + buf[1] = v >> 8;
> + em28xx_write_regs(dev, EM28XX_R32_VSCALELOW, (char *)buf, 2);
> + /* it seems that both H and V scalers must be active
> + to work correctly */
> + mode = (h || v) ? 0x30 : 0x00;
> + }
> + return em28xx_write_reg_bits(dev, EM28XX_R26_COMPR, mode, 0x30);
> +}
> +
> +/* FIXME: this only function read values from dev */
> +int em28xx_resolution_set(struct em28xx *dev)
> +{
> + int width, height;
> + width = norm_maxw(dev);
> + height = norm_maxh(dev);
> +
> + /* Properly setup VBI */
> + dev->vbi_width = 720;
> + if (dev->norm & V4L2_STD_525_60)
> + dev->vbi_height = 12;
> + else
> + dev->vbi_height = 18;
> +
> + em28xx_set_outfmt(dev);
> +
> + em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2);
> +
> + /* If we don't set the start position to 2 in VBI mode, we end up
> + with line 20/21 being YUYV encoded instead of being in 8-bit
> + greyscale. The core of the issue is that line 21 (and line 23 for
> + PAL WSS) are inside of active video region, and as a result they
> + get the pixelformatting associated with that area. So by cropping
> + it out, we end up with the same format as the rest of the VBI
> + region */
> + if (em28xx_vbi_supported(dev) == 1)
> + em28xx_capture_area_set(dev, 0, 2, width, height);
> + else
> + em28xx_capture_area_set(dev, 0, 0, width, height);
> +
> + return em28xx_scaler_set(dev, dev->hscale, dev->vscale);
> +}
> +
> +int em28xx_vbi_supported(struct em28xx *dev)
> +{
> + /* Modprobe option to manually disable */
> + if (disable_vbi == 1)
> + return 0;
> +
> + if (dev->board.is_webcam)
> + return 0;
> +
> + /* FIXME: check subdevices for VBI support */
> +
> + if (dev->chip_id == CHIP_ID_EM2860 ||
> + dev->chip_id == CHIP_ID_EM2883)
> + return 1;
> +
> + /* Version of em28xx that does not support VBI */
> + return 0;
> +}
> +
> +/* Set USB alternate setting for analog video */
> +int em28xx_set_alternate(struct em28xx *dev)
> +{
> + int errCode;
> + int i;
> + unsigned int min_pkt_size = dev->width * 2 + 4;
> +
> + /* NOTE: for isoc transfers, only alt settings > 0 are allowed
> + bulk transfers seem to work only with alt=0 ! */
> + dev->alt = 0;
> + if ((alt > 0) && (alt < dev->num_alt)) {
> + em28xx_videodbg("alternate forced to %d\n", dev->alt);
> + dev->alt = alt;
> + goto set_alt;
> + }
> + if (dev->analog_xfer_bulk)
> + goto set_alt;
> +
> + /* When image size is bigger than a certain value,
> + the frame size should be increased, otherwise, only
> + green screen will be received.
> + */
> + if (dev->width * 2 * dev->height > 720 * 240 * 2)
> + min_pkt_size *= 2;
> +
> + for (i = 0; i < dev->num_alt; i++) {
> + /* stop when the selected alt setting offers enough bandwidth */
> + if (dev->alt_max_pkt_size_isoc[i] >= min_pkt_size) {
> + dev->alt = i;
> + break;
> + /* otherwise make sure that we end up with the maximum bandwidth
> + because the min_pkt_size equation might be wrong...
> + */
> + } else if (dev->alt_max_pkt_size_isoc[i] >
> + dev->alt_max_pkt_size_isoc[dev->alt])
> + dev->alt = i;
> + }
> +
> +set_alt:
> + /* NOTE: for bulk transfers, we need to call usb_set_interface()
> + * even if the previous settings were the same. Otherwise streaming
> + * fails with all urbs having status = -EOVERFLOW ! */
> + if (dev->analog_xfer_bulk) {
> + dev->max_pkt_size = 512; /* USB 2.0 spec */
> + dev->packet_multiplier = EM28XX_BULK_PACKET_MULTIPLIER;
> + } else { /* isoc */
> + em28xx_videodbg("minimum isoc packet size: %u (alt=%d)\n",
> + min_pkt_size, dev->alt);
> + dev->max_pkt_size =
> + dev->alt_max_pkt_size_isoc[dev->alt];
> + dev->packet_multiplier = EM28XX_NUM_ISOC_PACKETS;
> + }
> + em28xx_videodbg("setting alternate %d with wMaxPacketSize=%u\n",
> + dev->alt, dev->max_pkt_size);
> + errCode = usb_set_interface(dev->udev, 0, dev->alt);
> + if (errCode < 0) {
> + em28xx_errdev("cannot change alternate number to %d (error=%i)\n",
> + dev->alt, errCode);
> + return errCode;
> + }
> + return 0;
> +}
> +
> /* ------------------------------------------------------------------
> DMA and thread functions
> ------------------------------------------------------------------*/
> @@ -1817,6 +2076,113 @@ static struct video_device *em28xx_vdev_init(struct em28xx *dev,
> return vfd;
> }
>
> +static void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl)
> +{
> + memset(ctl, 0, sizeof(*ctl));
> +
> + ctl->fname = XC2028_DEFAULT_FIRMWARE;
> + ctl->max_len = 64;
> + ctl->mts = em28xx_boards[dev->model].mts_firmware;
> +
> + switch (dev->model) {
> + case EM2880_BOARD_EMPIRE_DUAL_TV:
> + case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
> + case EM2882_BOARD_TERRATEC_HYBRID_XS:
> + ctl->demod = XC3028_FE_ZARLINK456;
> + break;
> + case EM2880_BOARD_TERRATEC_HYBRID_XS:
> + case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
> + case EM2881_BOARD_PINNACLE_HYBRID_PRO:
> + ctl->demod = XC3028_FE_ZARLINK456;
> + break;
> + case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
> + case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
> + ctl->demod = XC3028_FE_DEFAULT;
> + break;
> + case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
> + ctl->demod = XC3028_FE_DEFAULT;
> + ctl->fname = XC3028L_DEFAULT_FIRMWARE;
> + break;
> + case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
> + case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
> + case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
> + /* FIXME: Better to specify the needed IF */
> + ctl->demod = XC3028_FE_DEFAULT;
> + break;
> + case EM2883_BOARD_KWORLD_HYBRID_330U:
> + case EM2882_BOARD_DIKOM_DK300:
> + case EM2882_BOARD_KWORLD_VS_DVBT:
> + ctl->demod = XC3028_FE_CHINA;
> + ctl->fname = XC2028_DEFAULT_FIRMWARE;
> + break;
> + case EM2882_BOARD_EVGA_INDTUBE:
> + ctl->demod = XC3028_FE_CHINA;
> + ctl->fname = XC3028L_DEFAULT_FIRMWARE;
> + break;
> + default:
> + ctl->demod = XC3028_FE_OREN538;
> + }
> +}
> +
> +void em28xx_tuner_setup(struct em28xx *dev)
> +{
> + struct tuner_setup tun_setup;
> + struct v4l2_frequency f;
> +
> + if (dev->tuner_type == TUNER_ABSENT)
> + return;
> +
> + memset(&tun_setup, 0, sizeof(tun_setup));
> +
> + tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
> + tun_setup.tuner_callback = em28xx_tuner_callback;
> +
> + if (dev->board.radio.type) {
> + tun_setup.type = dev->board.radio.type;
> + tun_setup.addr = dev->board.radio_addr;
> +
> + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup);
> + }
> +
> + if ((dev->tuner_type != TUNER_ABSENT) && (dev->tuner_type)) {
> + tun_setup.type = dev->tuner_type;
> + tun_setup.addr = dev->tuner_addr;
> +
> + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup);
> + }
> +
> + if (dev->tda9887_conf) {
> + struct v4l2_priv_tun_config tda9887_cfg;
> +
> + tda9887_cfg.tuner = TUNER_TDA9887;
> + tda9887_cfg.priv = &dev->tda9887_conf;
> +
> + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &tda9887_cfg);
> + }
> +
> + if (dev->tuner_type == TUNER_XC2028) {
> + struct v4l2_priv_tun_config xc2028_cfg;
> + struct xc2028_ctrl ctl;
> +
> + memset(&xc2028_cfg, 0, sizeof(xc2028_cfg));
> + memset(&ctl, 0, sizeof(ctl));
> +
> + em28xx_setup_xc3028(dev, &ctl);
> +
> + xc2028_cfg.tuner = TUNER_XC2028;
> + xc2028_cfg.priv = &ctl;
> +
> + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &xc2028_cfg);
> + }
> +
> + /* configure tuner */
> + f.tuner = 0;
> + f.type = V4L2_TUNER_ANALOG_TV;
> + f.frequency = 9076; /* just a magic number */
> + dev->ctl_freq = f.frequency;
> + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
> +}
> +
> int em28xx_register_analog_devices(struct em28xx *dev)
> {
> u8 val;
> diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h
> index 191ef3593891..0259270dda46 100644
> --- a/drivers/media/usb/em28xx/em28xx.h
> +++ b/drivers/media/usb/em28xx/em28xx.h
> @@ -748,6 +748,7 @@ void em28xx_init_extension(struct em28xx *dev);
> void em28xx_close_extension(struct em28xx *dev);
>
> /* Provided by em28xx-video.c */
> +void em28xx_tuner_setup(struct em28xx *dev);
> int em28xx_vb2_setup(struct em28xx *dev);
> int em28xx_register_analog_devices(struct em28xx *dev);
> void em28xx_release_analog_resources(struct em28xx *dev);
Reviewed-by: Frank Schäfer <fschaefer.oss@xxxxxxxxxxxxxx>
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